the future queen, kate middleton, expecting her first child, but she was rushed to the hospital, prince william by her side. abc's lama hasan is here. we talked with sources inside the palace, and she has the latest on what happened. lama. >> reporter: good evening, diane. well, the couple had been so tightly lipped about the pregnancy that some here at the palace the queen, prince charles and other members of the royal family reportedly only found out about it today. but when kate was hospitalized, the palace decided it was time to break the news to the world. the last time the world saw kate middleton was on friday, a picture of health playing field hockey. now we learn the duchess of cambridge is pregnant and hospitalized for a condition called hyperemesis gravidarum. the palace today saying as the pregnancy is in its very early stages, her royal highness is expected to stay in hospital for several days and will require a period of rest thereafter. hg is a severe form of morning sickness that debilitates 2% of expectant mothers, causing severe vomiting, weight loss and dehydration. a